78829191

素因数分解:

$3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{4157}}^1$

素因数の和:4220

約数の個数: 36

約数和(自身を含む): 135567432

約数和(自身を除く): 56738241

約数列:

[1, 3, 7, 9, 21, 43, 49, 63, 129, 147, 301, 387, 441, 903, 2107, 2709, 4157, 6321, 12471, 18963, 29099, 37413, 87297, 178751, 203693, 261891, 536253, 611079, 1251257, 1608759, 1833237, 3753771, 8758799, 11261313, 26276397, 78829191]

約数ペア:

[(1, 78829191), (3, 26276397), (7, 11261313), (9, 8758799), (21, 3753771), (43, 1833237), (49, 1608759), (63, 1251257), (129, 611079), (147, 536253), (301, 261891), (387, 203693), (441, 178751), (903, 87297), (2107, 37413), (2709, 29099), (4157, 18963), (6321, 12471)]